/Engine/Source/Editor/SubobjectEditor/Public/SSubobjectEditor.h
[FReply](API\Runtime\SlateCore\Input\FReply) HandleOnDragDetected ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) & MouseEvent )